Norman,

CC_OPT seems to work on the compile stage, but not the link stage...

    COMPILE  new_delete.o
/usr/local/genode-gcc-x86_32/bin/genode-x86-g++  -m32 -L/usr/lib32 -DFOOOOOOBARRR -ffunction-sections -fno-strict-aliasing -nostdinc -g -march=i686 -O2 -MMD -MP -MT 'new_delete.o new_delete.d' -Wall    -I. -I/usr/include -I/home/dwaddington/git/omnios/genode/base-linux/src/platform/x86_32 -I/home/dwaddington/git/omnios/genode/base/include/x86 -I/home/dwaddington/git/omnios/genode/base/include/32bit -I/home/dwaddington/git/omnios/genode/base-linux/include -I/home/dwaddington/git/omnios/genode/base/include -I/home/dwaddington/git/omnios/genode/os/include -I/home/dwaddington/git/omnios/genode/demo/include -I/home/dwaddington/git/omnios/genode/libc/include -I/usr/local/genode-gcc-x86_32/bin/../lib/gcc/i686-pc-linux-gnu/4.4.5/include -c /home/dwaddington/git/omnios/genode/base/src/base/cxx/new_delete.cc -o new_delete.o
    LINK     audio_out_drv
libs=/home/dwaddington/git/omnios/build/genode-linux_x86/var/libcache; /usr/local/genode-gcc-x86_32/bin/genode-x86-g++ -Wl,-gc-sections  -Wl,-Tldscripts/elf_i386.xc -Wl,-T/home/dwaddington/git/omnios/genode/base-linux/src/platform/context_area.stdlib.ld -Wl,--whole-archive -Wl,--start-group alsa.o main.o new_delete.o $libs/allocator_avl/allocator_avl.lib.a $libs/avl_tree/avl_tree.lib.a $libs/console/console.lib.a $libs/env/env.lib.a $libs/heap/heap.lib.a $libs/ipc/ipc.lib.a $libs/lock/lock.lib.a $libs/log_console/log_console.lib.a $libs/server/server.lib.a $libs/signal/signal.lib.a $libs/slab/slab.lib.a $libs/syscall/syscall.lib.a $libs/thread/thread.lib.a  -Wl,--end-group -Wl,--no-whole-archive -lasound /usr/local/genode-gcc-x86_32/bin/../lib/gcc/i686-pc-linux-gnu/4.4.5/libgcc.a -o audio_out_drv

Daniel

On 03/14/2011 11:36 AM, Norman Feske wrote: 
Hi Daniel,


Looks like the problem is only specific to ..
./os/src/drivers/audio_out
./os/src/drivers/nic

everything else builds 32bit version on 64bit host platform.

These targets alongside 'os/src/drivers/framebuffer/sdl' are hybrid
programs using both the Genode framework as well as native Linux
libraries. The 'audio_out' "driver" translates Genode's
'Audio_out_session' to ALSA, 'nic' translates Genode's 'Nic_session' to
a Linux tap device, and 'fb_sdl' translates Genode's
'Framebuffer_session' and 'Input_session' to libSDL. Because of their
hybrid nature, those programs are built without the '-nostdlib' switch.
This way, the libraries at '/usr/lib' end up in those binaries.


It looks like I need to add -m32 -L/usr/lib32 to the linux-compiled
build flags - not sure how to do this, CC_OPT doesn't seem to
percolate through.

Normally, 'CC_OPT' is the right variable to use. However, I would not
specify those arguments globally (hence, a spec-file is the wrong place
for them). They should exceptionally be used for hybrid targets only.
Can you successfully build 'audio_out' by adding those arguments to
'CC_OPT' in its 'target.mk' file?

Best regards
Norman

--

Daniel G. Waddington Ph.D. C.Sci. | Samsung Information Systems America (SISA)

Principal Engineer/Research Manager, Systems Research Group, Computer Science Lab

t: 408-544-5675   f: 408-544-5540  c: 408-890-0479

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